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With regard to Ethernet media access methods, which of the following are true?（）
- A、A device waits for an electronic signal before transmitting.
- B、A device listens and waits until the media is not busy before transmitting.
- C、All devices on an Ethernet segment see data that passes on the network medium.
- D、Only the sender and the receiver devices see data that passes on the network medium.
- E、Ethernet networks allow you to configured devises with higher transmission priority.
参考答案
更多 “With regard to Ethernet media access methods, which of the following are true?（）A、A device waits for an electronic signal before transmitting.B、A device listens and waits until the media is not busy before transmitting.C、All devices on an Ethernet segment see data that passes on the network medium.D、Only the sender and the receiver devices see data that passes on the network medium.E、Ethernet networks allow you to configured devises with higher transmission priority.” 相关考题
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Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)A．Each device on the Ethernet segment stops transmitting for a short time.B．A jam signal informs all devices that a collision occurred.C．When data transmission resumes, the devices that were involved in the collision have priority to transmit.D．The devices that are involved in the collision stops transmitting for a short time.E．The collision invokes a random back-off algorithm.
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With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)A．A device waits for an electronic signal before transmitting.B．A device listens and waits until the media is not busy before transmitting.C．All devices on an Ethernet segment see data that passes on the network medium.D．Only the sender and the receiver devices see data that passes on the network medium.E．Ethernet networks allow you to configured devises with higher transmission priority.
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Regarding PAR (Positive Acknowledgement and Re－transmission), which of the answer choices below are correct?()
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Two stations on a LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network?()
A. Each device on the Ethernet segment stops transmitting for a short time.B. A jam signal informs all devices that a collision occurred.C. When data transmission resumes, the devices that were involved in the collision have priority to transmit.D. The devices that are involved in the collision stops transmitting for a short time.E. The collision invokes a random back-off algorithm.
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Which of the following devices can an administrator use to segment their LAN?()
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Which of the following statements are true for routers but not true for Layer 3 Ethernet switches？（Choose all that apply.）（）A、May have Ethernet as well as non-Ethernet interfacesB、Traditionally used as a standalone device for inter-VLAN communicationC、Makes use of TCAMsD、Uses subinterfaces to define trunksE、Can use both Layer 2 and Layer 3 to make forwarding decisionsF、Allows the definition of Switched Virtual Interfaces（SVI）
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Which of the following problems has occurred when a menu appears and prompts the user to "copy a dump to external media?（）A、 The external dump device is full. B、 The dump device was set to /dev/hd7 before the dump happened. C、 The boot failed while copying the dump from paging space to a file. D、 The dump device was not set to a paging device before the dump happened.
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Which two statements are true regarding an Ethernet collision domain?（）A、If a switch is used, the collision domain is limited to each device and the switchB、If a hub is used, the collision domain is limited to each device and the hubC、If a hub is used, the collision domain includes all devices connected to the hubD、If a switch is used, the collision domain includes all devices connected to the switch
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Which of the following problems has occurred when a message appears on the system console indicating that a dump must be copied to external media? （）A、 The external dump device is full. B、 The dump device was not mirrored before the dump happened. C、 The boot failed while copying the dump from paging space to a file. D、 The dump device was not set to a paging device before the dump happened.
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Which two statements are true regarding an Ethernet collision domain?（）A、If a switch is used, the collision domain is limited to each device and the switch.B、If a hub is used, the collision domain is limited to each device and the hub.C、If a hub is used, the collision domain includes all devices connected to the hub.D、If a switch is used, the collision domain includes all devices connected to the switch.
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Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.B、The device with the lowest MAC address is permitted to retransmit first.C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.D、Both devices send a jam signal to notify all other devices of the collision.
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Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）A、Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmitB、The device with the lowest MAC address is permitted to retrannsmit firstC、The device with the lowest MAC address sends a jam signal to notify all other devices of the collisionD、Both devices send a jam signal to notify all other devices of the collision
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Which statement is true regarding an Ethernet collision domain?（）A、If a router is used, the collision domain includes all devices connected to the routerB、If a hub is used, the colision domain is limited to each device and the hubC、If a switch is used, the collision domain is limited to each device and the switchD、If a bridge is used, the collision domain includes all devices connected to the bridge
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单选题When creating a Virtual Ethernet adapter， which of the following steps is done FIRST？（）A
Generate a unique MAC address.B
Run cfgmgr to create device special files.C
Create a virtual device with smitty vlan.D
Add a virtual Ethernet adapter to the partition profile.
考题
多选题With regard to Ethernet media access methods, which of the following are true?（）AA device waits for an electronic signal before transmitting.BA device listens and waits until the media is not busy before transmitting.CAll devices on an Ethernet segment see data that passes on the network medium.DOnly the sender and the receiver devices see data that passes on the network medium.EEthernet networks allow you to configured devises with higher transmission priority.
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多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switch.BIf a hub is used, the collision domain is limited to each device and the hub.CIf a hub is used, the collision domain includes all devices connected to the hub.DIf a switch is used, the collision domain includes all devices connected to the switch.
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多选题Which of the following statements are true for routers but not true for Layer 3 Ethernet switches？（Choose all that apply.）（）AMay have Ethernet as well as non-Ethernet interfacesBTraditionally used as a standalone device for inter-VLAN communicationCMakes use of TCAMsDUses subinterfaces to define trunksECan use both Layer 2 and Layer 3 to make forwarding decisionsFAllows the definition of Switched Virtual Interfaces（SVI）
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多选题Your computer has a TV tuner card installed. You install a wireless router and a Microsoft Windows Media Center Extender device. You need to access all the digital media on your computer from a different room in your house. Which two actions should you perform？ （）AIdentify the setup key from the Windows Media Extender device， and input the key on your Microsoft Windows Vista computer.BConfigure the Windows Media Center Extender device and your Microsoft Windows Vista computer to be on the same subnet.CConfigure the Windows Media Center Extender device and your Microsoft Windows Vista computer to be on different subnets.DEnter the password for your Microsoft Windows Vista user account as the setup key for the Windows Media Center Extender device.
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多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switchBIf a hub is used, the collision domain is limited to each device and the hubCIf a hub is used, the collision domain includes all devices connected to the hubDIf a switch is used, the collision domain includes all devices connected to the switch
考题
单选题Which statement is true regarding an Ethernet collision domain?（）A
If a router is used, the collision domain includes all devices connected to the routerB
If a hub is used, the colision domain is limited to each device and the hubC
If a switch is used, the collision domain is limited to each device and the switchD
If a bridge is used, the collision domain includes all devices connected to the bridge
考题
多选题Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）ABoth devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmitBThe device with the lowest MAC address is permitted to retrannsmit firstCThe device with the lowest MAC address sends a jam signal to notify all other devices of the collisionDBoth devices send a jam signal to notify all other devices of the collision
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单选题Which of the following problems has occurred when a menu appears and prompts the user to "copy a dump to external media?（）A
The external dump device is full. B
The dump device was set to /dev/hd7 before the dump happened. C
The boot failed while copying the dump from paging space to a file. D
The dump device was not set to a paging device before the dump happened.
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